I'm having trouble with Trentalinea schedules. I've checked Centrale, Porta Venezia and Rogoredo Station. I have only 2 options using trains: 1- arrive at 3pm and leave at 6pm- seems too much time 2- arrive at 5:20pm and leave at 6pm- is 1/2h enough and worth the trouble? I would like to get to Certosa at 4, 4:30pm by bus from Milano and take a train back at 6pm. Where do I find that bus? any details and links are appreciated. I'm looking to depart from Porta Venezia area if possible. Thanks in advance